/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.flink.runtime.entrypoint.component;

import org.apache.flink.runtime.resourcemanager.ResourceManager;
import org.apache.flink.runtime.resourcemanager.ResourceManagerGateway;

import java.util.concurrent.CompletableFuture;

/**
 * Default {@link DispatcherResourceManagerComponent.ResourceManagerService} implementation which
 * uses a {@link ResourceManager} instance.
 */
public class DefaultResourceManagerService implements DispatcherResourceManagerComponent.ResourceManagerService {

	private final ResourceManager<?> resourceManager;

	private DefaultResourceManagerService(ResourceManager<?> resourceManager) {
		this.resourceManager = resourceManager;
	}

	@Override
	public ResourceManagerGateway getGateway() {
		return resourceManager.getSelfGateway(ResourceManagerGateway.class);
	}

	@Override
	public CompletableFuture<Void> getTerminationFuture() {
		return resourceManager.getTerminationFuture();
	}

	@Override
	public CompletableFuture<Void> closeAsync() {
		return resourceManager.closeAsync();
	}

	public static DefaultResourceManagerService createFor(ResourceManager<?> resourceManager) {
		return new DefaultResourceManagerService(resourceManager);
	}
}
